1939 Map of Allentown

Beyond the river valleys, the map reveals a rural geography transitioning toward mid-century aviation, with both the Allentown Bethlehem Airport and the Bethlehem Landing Field established. For those tracing family history, the map is densely populated with community markers, from the County Home in Upper Nazareth to dozens of rural schools like the Knauss Sch and Black River Sch. Distinctive terrain features such as Camelhump and Gauff Hill rise above the township boundaries of Hanover and Salisbury, where small settlements like Shoenersville and Friedensville maintained their own local identities.